Climate at a Glance

Statewide Rankings

Look up monthly rankings for 1-12, 18, 24, 36, 48, and 60-month time periods using the options below. Data and statistics are as of September 2021. For more information, please see Climatological Rankings.


Delaware

Precipitation Rankings, August 1999

View Period (Months):All1234567891011121824364860
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2021)
Wettest/Driest
Since
Record
August 1999
1-Month
4.52"
(114.81mm)
4.59"
(116.59mm)
-0.07"
(-1.78mm)
73rd Driest Driest since: 1998 2008
55th Wettest Wettest since: 1997 1967
Jul–Aug 1999
2-Month
6.73"
(170.94mm)
8.90"
(226.06mm)
-2.17"
(-55.12mm)
40th Driest Driest since: 1998 1966
88th Wettest Wettest since: 1997 1919
Jun–Aug 1999
3-Month
8.84"
(224.54mm)
12.54"
(318.52mm)
-3.70"
(-93.98mm)
22nd Driest Driest since: 1998 1966
106th Wettest Wettest since: 1997 2013
May–Aug 1999
4-Month
10.38"
(263.65mm)
16.10"
(408.94mm)
-5.72"
(-145.29mm)
8th Driest Driest since: 1987 1964
120th Wettest Wettest since: 1998 1919
Apr–Aug 1999
5-Month
13.26"
(336.80mm)
19.58"
(497.33mm)
-6.32"
(-160.53mm)
7th Driest Driest since: 1987 1957
121st Wettest Wettest since: 1998 1919
Mar–Aug 1999
6-Month
18.02"
(457.71mm)
23.55"
(598.17mm)
-5.53"
(-140.46mm)
13th Driest Driest since: 1995 1930
115th Wettest Wettest since: 1998 1989
Feb–Aug 1999
7-Month
20.75"
(527.05mm)
26.60"
(675.64mm)
-5.85"
(-148.59mm)
14th Driest Driest since: 1995 1930
114th Wettest Wettest since: 1998 1958
Jan–Aug 1999
8-Month
26.59"
(675.39mm)
30.09"
(764.29mm)
-3.50"
(-88.90mm)
28th Driest Driest since: 1995 1930
100th Wettest Wettest since: 1998 1958
Dec 1998–Aug 1999
9-Month
29.34"
(745.24mm)
33.55"
(852.17mm)
-4.21"
(-106.93mm)
32nd Driest Driest since: 1995 1930
95th Wettest Wettest since: 1998 1958
Nov 1998–Aug 1999
10-Month
30.56"
(776.22mm)
36.62"
(930.15mm)
-6.06"
(-153.93mm)
21st Driest Driest since: 1995 1977
106th Wettest Wettest since: 1998 1958
Oct 1998–Aug 1999
11-Month
32.91"
(835.91mm)
39.77"
(1,010.16mm)
-6.86"
(-174.25mm)
17th Driest Driest since: 1995 1966
110th Wettest Wettest since: 1998 1958
Sep 1998–Aug 1999
12-Month
35.16"
(893.06mm)
43.36"
(1,101.34mm)
-8.20"
(-208.28mm)
9th Driest Driest since: 1995 1966
118th Wettest Wettest since: 1998 1958
Mar 1998–Aug 1999
18-Month
56.46"
(1,434.08mm)
66.82"
(1,697.23mm)
-10.36"
(-263.15mm)
11th Driest Driest since: 1987 1966
116th Wettest Wettest since: 1998 1984
Sep 1997–Aug 1999
24-Month
82.44"
(2,093.98mm)
86.56"
(2,198.62mm)
-4.12"
(-104.64mm)
43rd Driest Driest since: 1993 1966
83rd Wettest Wettest since: 1998 2004
Sep 1996–Aug 1999
36-Month
129.05"
(3,277.87mm)
129.84"
(3,297.94mm)
-0.79"
(-20.07mm)
52nd Driest Driest since: 1995 1966
73rd Wettest Wettest since: 1998 2005
Ties: 1928
Sep 1995–Aug 1999
48-Month
183.56"
(4,662.42mm)
173.06"
(4,395.72mm)
10.50"
(266.70mm)
93rd Driest Driest since: 1998 1966
31st Wettest Wettest since: 1997 1939
Sep 1994–Aug 1999
60-Month
215.34"
(5,469.64mm)
216.24"
(5,492.50mm)
-0.90"
(-22.86mm)
49th Driest Driest since: 1995 1966
74th Wettest Wettest since: 1998 1937

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published October 2021, retrieved on October 16, 2021 from https://www.ncdc.noaa.gov/cag/